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remove the batteries, or press the Reset button with the tip of a ballpoint pen.

https://www.manualslib.com/manual/283133/Intermatic-Hb77.html#manual

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Intermatic... | Answered on Nov 21, 2020


If lights are blinking with Intermatic EJ500 or ST01C, then you have the red and blue wires reversed. The red wire should be capped off. The blue wire goes to Load wire.

Intermatic Inc.... | Answered on May 28, 2020


could be a faulty batch. If all wiring correct then it must be the timer

Intermatic Inc.... | Answered on May 28, 2020


Today Technology made things easier, you could surf through internet by using Google or YouTube then write your models and I'm sure you can find in details the right answer for your article.

Intermatic Pool... | Answered on May 01, 2020


Les, First thing to do is to change the battery and see if the timer will allow you to reprogram it. Sometimes these timers will fail, as some models have a known history of failing fairly often.

NoOp, means non operating within the Intermatic line of electronic timers, so in order to see if the unit has failed or is just malfunctioning, due to a weak battery, remove the existing battery and install a fresh, new one.

You can remove the existing battery by flipping down the front switch panel and removing the battery tray with either your fingernail or a small flat bladed screwdriver. As your timer is showing the NoOp, you don't have to worry about losing your programmed on/off cycles, so you can take your time. Normally, if you're changing the battery, you get about 30 seconds to do this with some models of Intermatic timers, or you'll lose the settings. The newer models store the program regardless of how long it takes to change the battery.

Once you've replaced the battery, press the Reset button on the timer and allow it to refresh. If the NoOp is gone, just reprogram the timer with your on/off cycles and days and you're back in action. If the timer doesn't clear, you'll likely need to replace it, as it could be damaged and will not be able to be programmed again.

Usually, changing the battery and resetting the timer works about 60% of the time for me, as I've installed thousands of the various Intermatic timers in customer's homes over the years.

Hope you find this Very Helpful and best regards!

Intermatic Inc.... | Answered on Mar 26, 2020


Here's a 240V diagram with clock timer and freeze control:
Add a comment if explanation does not fit your exact timer:

geno_3245_67.jpg
See image full size:
http://waterheatertimer.org/images/Freeze-protection-500.jpg

Here's how freeze control works:
Freeze control is like regular timer, except it turns ON by thermostat instead of time-clock
Freeze control turns ON pump whenever thermostat kicks on.
Both clock-timer and freeze-control are wired to pump in 'parallel' so to speak.
Think of it as having two controls wired to same pump...
Both controls can turn pump ON-OFF.
If one turns ON, and other is OFF ... then pump is ON.
If both are ON, then pump is ON ... and electricity just flows around on extra wires.
If both are OFF, then pump is OFF.

Say it's below freezing all day.
Freeze control circuit is ON all day ... pump is ON all day
Clock timer turns ON > but circuit is already ON, so timer just opens more wires for electricity to flow around on.
When clock timer turns OFF > freeze circuit is still ON because it's below freezing ... pump is still ON.

240V wiring:
Power leads coming from circuit breaker go to terminals 1&3 on clock-timer
Same power leads connect to freeze-control-black and freeze-control-red.
Or connect freeze-control-black and freeze-control-red to terminals 1&3
This action puts power to clock and power to thermostat

Pump wires connect to terminals 2&4
Same pump wires also connect to freeze-control-blue and freeze-control-yellow.
Or connect freeze-control-blue and freeze-control-yellow to terminals 2&4
This action connects pump to both freeze-control and timer.
When either clock-timer or freeze-control turn ON, then pump turns ON.

Intermatic Timer... | Answered on Nov 13, 2019


The closed contacts would mean the relay is not energized or contacts welded closed. Given the relay is the only moving part, the chances are good the relay has failed. But probably a 50:50 chance other internal electronics. Possibly lightning strike which makes it not likely repairable.

Anything can be fixed but economics would prohibitive. So unless you looking for an electrical project... no.

Open it up and look for arcing and/or burnt components. Check relay coil for continuity. If relay coil is open, you might get lucky and merely replacing the relay will make it functional.

Intermatic... | Answered on Jun 16, 2019


I have this timer and while it has power, it does now allow me the program it anymore. The screen shows all 8’s
6_11_2019_7_16_59_pm.jpg

Intermatic Inc.... | Answered on Jun 11, 2019


reading the specs i should say its a timer for only one zone. you can use it for one zone switching or for the pump. sorry.

Intermatic &... | Answered on Mar 14, 2019

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